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what is the mistake in this equation??: -1=(-1)^3=(-1)^6/2=redical (-1)^6=1

Submitted: 338 days and 13 hours ago.

Category: Math

Value: $9

Status: AWAITING CUSTOMER ACTION

Level: 2008-2009; Subject: math

Already Tried:
to ask a question but it is hard:

Answer

Dear rami,

Thank you for using Just Answer.

I don't know exactly what level of math you're at, but the basic problem is that y=radical(x) is not the only solution of y^2 = x; -radical(x) is also a solution.

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Expert:	Dr. Arthur Rubin
Pos. Feedback:	100.0 %
Answered:	12/19/2008

Mathematician

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

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Question

what is the mistake in this equation??: -1=(-1)^3=(-1)^6/2=redical (-1)^6=1

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Level: 2008-2009; Subject: math Already Tried: to ask a question but it is hard:

Answer

Dear rami, Thank you for using Just Answer. I don't know exactly what level of math you're at, but the basic problem is that y=radical(x) is not the only solution of y^2 = x; -radical(x) is also a solution.

Related Math Questions

Level: 2008-2009; Subject: math

Already Tried:
to ask a question but it is hard:

Dear rami,

Thank you for using Just Answer.

I don't know exactly what level of math you're at, but the basic problem is that y=radical(x) is not the only solution of y^2 = x; -radical(x) is also a solution.